@misc{indiciaed8b338fad87d,
  title = {Letter: Local immunity and ulcerative colitis.},
  author = {M Shiner and J Ballard and R J Shiner},
  year = {1974},
  doi = {10.1016/s0140-6736(74)92042-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/4136939/},
  note = {Source identifier: 4136939}
}